Polybutylene piping is a type of plastic water supply piping that was installed in homes between the mid 1970’s through the 199o’s. This pipe was easier, faster and cheaper to install than traditional copper piping so it quickly became the product of choice for some builders. The problem with polybutylene is that it quickly developed a history of failure causing hidden plumbing leaks leading to major damage.
Most of the water pipes are run either underneath the house, through the attic or inside the walls. When leaks develop inside of the walls, they can leak for a long period of time before being noticed. By the time a homeowner notices wet walls or floors, substantial damage has already occurred. Polybutylene piping is most often gray in color and is stamped with the wording PB2110 or ASTM3309.
Polybutylene key problems:
- Brittleness and Leaks: Polybutylene becomes brittle over time, especially when exposed to chlorine in the water, leading to deteriorated connections, leaks and cracks
- Water Damage: Leaks can cause significant water damage to walls, floors, and ceilings
- Mold Growth: Water from leaks can lead to mold growth, which can be harmful to health and expensive to remediate
- Reduced Water Pressure: As the pipes deteriorate, they can cause reduced water pressure and flow
- Contaminated Water: The breakdown of polybutylene can contaminate the water supply
- Polybutylene piping may not be covered by your insurance or may be covered at a higher rate.
If you suspect your home has polybutylene pipes and it was built between 1977 to 1997, you should consider having the plumbing system inspected by a professional.
Once polybutylene is confirmed, contact a qualified plumbing contractor for a consultation and quote for repairs.